IBM 8687 - Eserver xSeries 440 Planning And Installation Manual page 25

As of November 2002, you can connect two x440 servers together to form one
16-way complex. The two x440 nodes are connected together using all three
SMP Expansion Ports as shown in Figure 1-6.
CPU 1 CPU 2 CPU 3
Processor &
32 MB
cache controller
L4 cache
SDRAM
Memory
SDRAM
controller
SDRAM
SDRAM
PCI bridge
x440 Node 1
CPU 1 CPU 2 CPU 3
Processor &
32 MB
L4 cache cache controller
SDRAM
Memory
SDRAM
controller
SDRAM
SDRAM
PCI bridge
x440 Node 2
Figure 1-6 16-way configuration (four SMP Expansion Modules)
The rear panel of the x440, indicating the location of the SMP Expansion Ports
and RXE Expansion Ports, is shown in Figure 1-7 on page 12.
CEC 1
CPU 4
1
2
3
CEC 1
CPU 4
1
2
3
SMP Expansion
Ports (3.2GBps)
CEC 2
CPU 4 CPU 3 CPU 2
1
Processor &
2
cache controller
3
Memory
controller
PCI bridge
CEC 2
CPU 4 CPU 3 CPU 2
1
Processor &
2
cache controller
3
Memory
controller
PCI bridge
Chapter 1. Technical description
CPU 1
32 MB
L4 cache
SDRAM
SDRAM
SDRAM
SDRAM
CPU 1
32 MB
L4 cache
SDRAM
SDRAM
SDRAM
SDRAM
11